Image support for CKEditor for TYPO3

This extension adds the TYPO3 image browser to CKEditor.

• Same image handling as rtehtmlarea (magic images, usual RTE TSConfig supported)
• Image browser as usual in e.g. FAL file selector
• Dialog for changing width, height, alt and title (aspect ratio automatically maintained)

Installation

1. Install the extension

   1. with composer from packagist

      composer require netresearch/rte-ckeditor-image

   2. with composer from TYPO3 TER composer repository

      composer require typo3-ter/rte-ckeditor-image

   3. download from TYPO3 TER

2. Activate it in Extension Manager or via command line

3. Add a preset for rte_ckeditor or override the default one (as below):

   <?php
   // EXT:my_ext/ext_localconf.php`
   $GLOBALS['TYPO3_CONF_VARS']['RTE']['Presets']['default'] = 'EXT:my_ext/Configuration/RTE/Default.yaml';

   # EXT:my_ext/Configuration/RTE/Default.yaml
   imports:
     # Import default RTE config (for example)
     - { resource: "EXT:rte_ckeditor/Configuration/RTE/Default.yaml" }
     # Import the image plugin configuration
     - { resource: "EXT:rte_ckeditor_image/Configuration/RTE/Plugin.yaml" }
   
   editor:
     config:
       # RTE default config removes image plugin - restore it:
       removePlugins: null

Configuration

Maximum width/height

The maximum dimensions relate to the configuration for magic images which have to be set in Page TSConfig:

# Page TSConfig
RTE.default.buttons.image.options.magic {
    maxWidth = 1020  # Default: 300
    maxHeight = 800  # Default: 1000
}

Allowed extensions

By default the extensions from $TYPO3_CONF_VARS['GFX']['imagefile_ext'] are allowed. However you can override this for CKEditor by adding the following to your YAML configuration:

editor:
  externalPlugins:
      typo3image:
        allowedExtensions: "jpg,jpeg,png"